Editor's note: This story has been changed to reflect that the Copper Canyon Ultra Marathon took place in Urique, Mexico.

The search continues today for Micah True, an ultrarunner and legend among Boulder runners, who is missing in New Mexico after going out for a run Tuesday morning, according to officials.

True, 60, was last seen Tuesday at the Gila Wilderness Lodge in Gila, N.M., according to officials. The owners of the lodge reported True missing when he did not return Wednesday morning.

Fourteen search and rescue teams --- including three dog teams, five horse teams a National Guard helicopter and a Civil Air Patrol fixed-wing aircraft --- began searching this morning after last night's search was suspended at 11 p.m., according to Incident Commander Frankie Benoist.

Benoist told the Silver City Sun-News that teams are expanding the search today as well as covering previously searched areas in order to increase the probability of detection, which is the estimate of probability that the subject is within a specific area.

Jane Brummer, a friend and co-owner of the lodge, said True left for a 12-mile run at about 10 a.m. Tuesday with a water bottle and wearing running shorts, a T-shirt and running shoes. She said he was supposed to have left for Phoenix on Wednesday.

"When he didn't come home that night, we knew something was wrong," Brummer said. "We don't know if he got turned around or if he's injured or what. He's a very experienced runner. It's kind of hard to believe that he's lost. We just need to get out there and try to track him down."

True, who also goes by the name Caballo Blanco, meaning "white horse," was made famous by Chris McDougall's best-selling book "Born to Run." The book, released in 2009, chronicles True's time in Mexico's Copper Canyon with the Tarahumara Indians, an isolated tribe known for long, grueling runs.

True is also race director of the Copper Canyon Ultra Marathon, a 50-plus-mile extreme race that took place in Urique, Mexico, on March 4.

Michael Sandrock, a Camera running columnist, said "Born to Run" turned True into a legend in Boulder.

"These college kids and runners would come up to him and ask for pictures like he was a movie star or a celebrity," Sandrock said of True, who runs a moving business. "For runners, when you think of Boulder, you think of him."

But Sandrock said True's newfound fame never went to his head.

"He was truly authentic," Sandrock said. "He never wanted any publicity about himself. He just did it because he loved it."

An email sent out to Boulder Trail Runners members on Thursday night read, "There is no one who loves the trail more than this man. He clearly embodies the spirit of what we all share about the trails and mountains."

Search teams received several tips, but none of them panned out Thursday.

"It seems like we get something promising, and it turns out not to be accurate," said Brian Fuller with New Mexico Search and Rescue. "We thought we had signs of the subject's footwear, but it turns out that he had actually left the gear in his truck. We thought we were making progress and it actually set us back. We're continuing to diligently work through the tips, though."

True is not the first Boulder County resident to go missing in the area. The body of Arsalan Serajian was found at the Gila Cliff Dwellings National Monument Park -- about five miles from where True was last seen -- in 2008.

Serajian, 26, had lived in Superior for two years before disappearing in New Mexico for several months. His body was found with a gunshot wound to the head, and federal investigators ruled the death a suicide, though his family told the Camera they did not believe he was suicidal.

Silver City Sun-News staff reporter Aaron West contributed to this report.

Foster pours in 14 to lead EaglesBOULDER — As Broomfield head boys basketball coach Terrence Dunn likes to say, senior guard Sam Foster is usually the guy the Eagles turn to when they need a big play. Full Story

Boulder is pretty good at producing rock bands, and by "rock," we mean the in-your-face, guitar-heavy, leather-clad variety — you know, the good kind. For a prime example, look no farther than BANDITS. Full Story